Variety traits
Tolerance is the ability of a variety to maintain productivity and crop quality when exposed to pathogens or abiotic stresses. Unlike resistant varieties, tolerant plants are affected by infection but compensate for the damage without significant yield loss.
Mentioned in descriptions 20 866 varieties reference book.
Variety tolerance is the ability of a plant to withstand pathogen infection or the influence of abiotic factors, such as drought or salinity, without a significant decrease in productivity. In contrast to resistance, where the plant blocks the development of the pathogen, a tolerant variety becomes infected and bears signs of the disease, yet its physiological processes allow it to maintain a satisfactory yield level.
Tolerance assessment is conducted under disease pressure conditions by comparing the yield of varieties with the same degree of infection. When analyzing diseases, rating scales are used, where varieties with a high degree of infection but an insignificant drop in yield are classified as tolerant. Physiological indicators of resistance to abiotic stresses include data on germination, root system development, and the condition of the photosynthetic apparatus.
The complex trait of tolerance is expressed through the yield reduction coefficient: the lower the drop in productivity under strong factor impact, the higher the indicator. It is agronomically important that tolerant varieties act as latent carriers of pathogens, contributing to their accumulation in the field, which requires increased attention to phytosanitary monitoring even when plants appear healthy.
Selection based on the description text, not official resistance ratings: such data is not available in registers. Mention indicates that the trait is discussed in the variety's sources; see the variety's profile for details on what is specifically stated.
Festuca rubra L. · Red fescue
DLF Trifolium A-S, DK
Beta vulgaris Garden Beet Group · Garden beet
Sakata Vegetables Europe, F
Triticum durum Desf. · Durum wheat
Saatzucht Donau GmbH & Co.KG
Cucumis sativus L. · Cucumber
Paul Degreef
Triticum aestivum L. · Bread wheat
Serasem S.A.S.
Cucumis sativus L. · Cucumber
SEMO a.s
Lolium perenne L. · Perennial ryegrass
Jan Wojciech Kaszuba / Anna Ostrowska
Beta vulgaris Garden Beet Group · Garden beet
Vilmorin SA (FR)
Cucumis sativus L. · Cucumber
Paul Degreef
Linum usitatissimum L. · Common flax
Van de Bilt Zaden en Vlas B.V.
Helianthus annuus L. · Sunflower
MAS Seeds, F
Capsicum annuum L. · Bell pepper
Zoldsegtermesztesi Kutato Intezet, H
Festuca rubra L. · Red fescue
EURO GRASS Breeding GmbH & Co KG, DE
Triticum aestivum L. · Bread wheat
Secobra Recherches, F
Lolium perenne L. · Perennial ryegrass
BARENBRUG UK LTD
Triticum aestivum L. · Bread wheat
Sarl Adrien Momont et Fils, F
Glycine max (L.) Merr. · Soybean
Saatzucht Donau, A
Impatiens L. · Balsam
Ludwig Kientzler
Triticum aestivum L. · Bread wheat
LEMAIRE DEFFONTAINES S.A.S.
Brassica oleracea L. (Cauliflower Group) · Cauliflower
Remi Levieil
Helianthus annuus L. · Sunflower
Lidea Frances SAS, F
Festuca rubra L. · Red fescue
DLF Seeds A/S
Triticum aestivum L. · Bread wheat
FLORIMOND DESPREZ VEUVE ET FILS
Alstroemeria L. · Alstroemeria
van Zanten Plants b.v